Gang-plow.



W. S. GRAHAM.

GANG PLOW.

APPLIOATION'IILED JAN.14, 1914.

Patented Dec. 1, 1914.

6 SHEETS-SHEET l.

A TTOBNEY W. S. GRAHAM.

GANG PLOW.

APPLICATION FILED JAN.14, 1914.

1, 1 1 9,423,, Patented Dec. 1, 1914.

,6 SHEETS-SHEET 2.

rman- W. S. GRAHAM.

GANG PLOW.

APPLICATION rum) JAN. 14, 1014.

1,1 19,%2, Patented Dec. 1, 1914.

5 SHEETS-*MIEET 3.

. WITNESSES. INKENTUF Ww BY A TIORNEU W. s. GRAHAM.

GANG PLOW.

APPLICATION FILED JAN. 14, 1914.

19119%%@%B Patented Dec. 1, 1914.

6 SHEETS-SHIJET 4 mus/8.55; i [NVEN TOR W LEJ-M t fm MW l ATTORNEKI W. .S. GRAHAM.

GANG PLOW.

A1PLI(.A'11ON 1mm JAN. 14, 1014 1,1 19,423, Patented Dec. 1,1914.

5 SHEETS-$111181 5.

A TTORNEYJ r TED snares Parana opinion.

WILLIAM S. GRAHAM, 0F CANTO N, ILLINOIS, ASSIGNOR TO PARLIN & ORENDORFF COMPANY, OF CANTON, ILLINOIS, A CORPORATION OF ILLINOIS.

GANG-PLOW.

Specification of Letters Patent.

Patented Dec. 1, 1914.

Application filed January 14, 1914. Serial No. 811,970.

To alt whom it may concern:

Be it known that 1, WILLIAM S. GRAHAM, a citizen of the United States, residing at Canton, in the county of Fulton and State of Illinois, have invented certain new and useful Improvements in Going-Flows, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to gang plows and has for its object the provision of new and improved means for lowering and raising the, plows in succession on a line at right angles to the course of the machine. Various constructions have been used heretofore for lifting and lowering the plows by power derived from one of the supporting wheels of the plow frame. involving the use of clutch mechanism interposed in the connections between the supporting wheel and the plow-beams. Such clutch mechanism must necessarily be somewhat complicated employing a number of cooperating parts. In asmuch as the power required for lifting the plows is very considerable, it has been found necessary heretofore to make the connecting clutch mechanism very heavy, rendering the whole structure cumbersome and awkward.

Heretofore efforts have been made to avoid the use of selective clutch nnrchanism by providing means by which the operator might by careful attention effect the successive raising and lowering of the plows by power. It has been proven in practice, however, than an operator, having charge of both the engine and the plow has little opportunity to give especial attention to the plow just beforeit is necessary to turn for a new furrow and during the turning operation. It is therefore clear that if reliance must be placed upon a single operator having charge of the engine and the plow to bring about a proper successive raising and lowering of the plows, it will be found that the task is performed ordinarily in a very indifferent manner.

' It is one-of the objects of my invention to provide a power plow lifting and lowering mechanism which shall avoid the use of the cumbersome clutch and which will also obviate-the necessity for any special attention on thepart of the operator to attain the successive raising and lowering of the plows inl'proper time relative to each other.

- t is another object of this invention to improve devices of the type namedin sundry details hereinafter pointed out.

The means by which I have accomplished my QbJOCl'S are illustrated in the accompanying drawings and are hereinafter specifically described.

That which I believe to be new is set forth in the claims.

In the drawings :-Figure 1 is a top or plan view of a plow embodying my improvements, only two of the several plow-beams belng shown; Fig. '2 is a side view of the plow shown in Fig. l with one plow-bcam in raised position, the other plow-beams and one of the frame-supporting wheels being omitted for clearness of illustration; Fig. 3 is a side view of the partsyhown in Fig. 2, but showing the beam in its lowered position; Fig. l is an enlarged detail, being a plan view of one of the sets of mechanism provided in connection with each of the plows for raising and lowering the plows; Fig. 5 is a side elevation of the parts shown in Fig. l. showing also in their relative positions the actuating arms of the remaining three sets of plow-raising mechanism, the parts being shown as seen from the near side in Fig. 1; Fig. 6 is a view similar to liig. 5 but showing the position the parts assume upon the raising of the plows; Fig. 7 is an enlarged detail, being a plan view of the mechanism for controlling the lowering of the plows.whereby they are dropped successively at proper intervals; Fi 8 is a. side elevation of the parts shown in Fig. 7, but with the sprocket wheel cut away to show the construction more clearly, the parts being shown as seen from the far .side of Fig. l; and Fig. 0 is a view similar to Fig. 8, but showing the parts in operative engagement for the lowering action.

Referring to the several figures of the drawings in which corrcspomling parts are indicated by the same reference characters,- 20 indicates the framework of the plow comprising a diagonal beam 21 to which the plow beams are adapted to be attached.

mounted upon the frame in any suitable manner.

indicates a bracket fixedly secured upon the diagonal beam 21, upon the rear edge of which a plow-beam comprising bars 333i, said lever being provided with aspi'ingseated detent 37 and latch 38 for operating it, of any suitable well-known type, whereby the lever can be set and held in any of a plurality of positions about the pivot bolt 36.

39 indicates a bell-crank lever also pivotally mounted upon the bolt 36.

a0 indicates a gage-wheel revolubly mounted upon the lower turned end of a bar 41 the other turned end of which is pivotally mounted in a bracket 42 depending from the plow-beams 26-27.

it indicates a link pivotally connected at its upper end to the forwardly-extending arm of the bell-crank lever 39 and pivotally connected at its lower end to abracket 4: 1 carried by the lower end ofthe bar 41. As

will be readily understood, when the bell crank lever 39 is swung forward in clockwise direction in Figs. and 3 the beams 2G27 and the plow-share 28 will be raised relative to the gage-wheel 0. It will likewise be understood that the lever is adapted to be swung in clockwise direction in said figures upon its pivot 36 to hold the bellcrank lever 39 inits turned position through the medium of a bracket t5 which is adapted to contact a stop d6 mounted on the forwardly-extending arm of said bell-crank lever. It will be understood moreover that" by a stroke of the lever 35 the bell-crank lever may be turned for the purpose of raising the plow-beam independently of any other instrumentality. It will be understood that when the plow-share is standing in raised position, being held in such position either by the lever 35 or by the means hereinafter described for operating upon said bell-crank, upon the releasing of the lever 35 or said other means for operating the bell-crank, the beams 26-27 and the plow 28 will through their own weight drop to their lowermost position- It will be understood that the lever 35 is adapted to be set to regulate the extent to which the bell-crank lever can move in counterclcck wise direction, thus limiting the depth to which the plowshare is adapted to run.

47-48 indicate the cross-bars of the auxiliary frame in which is journaled the main drive-shaft 4:9 of the means for raising the plows by power.

, 50 indicates a sprocket gear mounted by means of a hub 51. upon one end of the shaft 49 and held against rotation relative thereto by means of a set-screw 52 or in any other suitable manner.

53 indicates a supporting wheel journaled in the framework 20 of the plow by means of a shaft 54.

55 indicates a sprocket gear fixedly mounted upon the hub 56 of the wheel 53.

57 indicates sprocket chain connecting the sprocket gears 55 and 50, whereby the shaft 4:9 is driven constantly in clockwise direction, as shown in Figs. 2 and 3, during the forward movement of the plow.

58-59-60-61 indicate auxiliary frame-v bars extending from one to the other of the bars L748. T he auxiliary frame in which the shaft 4-9 is journaled is secured to the frame 20 of the plow in any suitable manner, as by angle-irons 62.

(33 indicates a transversely-extending rock-shaft journaled in the auxiliary frame in rear of theshaft as, and G-i indicates a transverselyextending rock-shaft journaled in said frame in front of the shaft 49.

indicates an arm depending from the rock-shaft 63 between the frame-bars 58-59, connected at its lower end by means of a coiled spring 66 to a collar 67 mounted upon the shaft 49, the spring-tending to hold the rock-shaft 63 turned in counter- 6, to the limit of its turn in that direction.

(58 indicates an arm rising from the rockshaft 6i likewise connected by a spring 68. with said collar 67, said spring 68 tending to hold the shaft 64; turned in clockwise direction as seen in Figs. 8 and'9 to the limit of its turn in that direction.

Coming now to the means for connecting the constantly-rotating shaft 49 with the plow-beams for raising the plows in succession, 69-70717'2 indicate ratchet-wheels secured. in any suitable manner upon the shaft 49 against rotation relative thereto, in the construction shown said ratchet-wheels being secured against rotation by means of bolts 73 passing through the hubs of said wheels and through said shaft. 74 indicates arms revoluble with sleeves 74:5 on said shaft 49- alongside of said ratchet-wheels, to the outer ends bf which arms are pivotally connected curved links 75, the rear ends of which are connected by means of chains 76 with links 77 connected at their rein ends with the upwardly-extending arms of the hellcrank Levels 39. 78 indicates'laterallyextending pins carried by the frame-bars 58-5960--61, upon which pins the outer ends of the arms 74: rest when in their rearniost positions. 79 indicates brackets rising from the transverse "frame-bar 47, upon which brackets the links 75 are adapted to rest and over which said links slide. Each of the arms T l has pi votallv mounted upon it in alineinent with the ratchet-wheel along side of which it is located a pawl or dog 80, the rear end. of .which dog relative to the direction oi rotation of the ratchet-wheel is zulapted to bebrought into engagement with the teeth of said ratchet-wheel whereby the arm 74 is caused to rotate about the shaft 49 with said ratchet-wheel, carrving the curved link 75 forward into the position shown in Fig. 6, turning the bellcrank lcver 39 upon its pivot through the medium of the chain 76 and link 77 and raising the plow 28 from the ground, as will be readily understood. As the end of the dog 80 which is in advance in its movement as just described comes in contact with a stud or roller 81 below and in front of the shaft 49, further advance of the dog causes it to turn relative to the arm 74% withdrawing the dog from engagement with the ratchet-wheel and bringing the arm 74. into contact with said stud or roller 81. In this position, the wmwetion between the arm 74 and the for wariil end of the link 75 is below the center o't' si t 49, whereby a rearward pull upon the l :k 75 tends to force the arm 74 still farther in clockwise direction in Fig.

o. 513F155 holdingthe plow automaticalljv lot-l in raised position. Inasmuch as the se al studs 81 provided for the several plo raising mechanisms are similarly located relative to the shaft 49, it follows that the links 75 are thrown out of engagement with their ratchet-wheels and are held sup-' ported in the same relative positions a regards the shaft 49.

Coming now to the means for throwing the several dogs 80 into engagement with their respective ratchet-wheels 69--70-71-- 72, 8283-84-85 indicate arms fixed upon the rock-shaft 63 in alinement with the dogs 30, respectively, said a1 ms being adapted to contact the dogs 80 11])01 the rocking of the rock-shaft 63 in clockwise direction in Figs. 5 and 6 moving said dogs into engagement with their respective ratchet-wheels as above described. As best: shown in Figs/5 and 6. the arms 82-83--84-85 are placed in staggered relation relative to each other upon the rock-shaft 63. \Vhen the shaft 63 is rocked in clockwise direction insaid figures bv means of the lever 86 fixed upon one end of said shaft. the arm 82 is brought into contact with the dog 80 of the right hand plow, swinging: said dog into engagement with the ratchet-wheel 7 2. Bv reason of the continued sliding bearing of the* arm 82 upon a heel portion 80 of said dog 80, the

shaft (33 is held against further rotation in clockwise direction in said Fig. 5 until the dog 80 has been moved with the ratchet wheel T2 out of engagementwith the arm 8:2. 'lhcreupon the shaft (33 is permitted to rotate farther upon the continued forward pull upon the lever 86, moving the dog 80 of the next adjacent plo\\"-elevating means into contact with its ratchet-wheel 71 for the raising of the second plow. The arm 83 has a similar continued sliding bearing upon the heel portion 80 of the dog 80 of the ratchet-wheel 71 whereby the shaft 63 is held against further rotation until said dog 30 is carried out of contact with the arm 83 by the ratchet-\vlieel 71. Thereupon the arm 84- acts to move the dog 80 ot the third elevating means into engagement with its ratchet T0 for raising the third plow. At a like interval thereafter the last-mentioned dog 80 moves out of contact with the arm 84 whereupon the arm 85 moves the fourth dog 80 into engagement with its ratchet-wheel 69 for raising the fourth plow. As will be readily understood, the parts are so proportinned and so positioned relative to each other that when the plows are raised successively by the operation as just above described. they are raised at substantially the same point in the advance of the plow;- that is to sav. on a line at ric'ht angles to the direction of movement of the plow. After the plows have all been raised through the action of the dogs R0 operating upon the ratchet-whccls. the lever 86 may be released, whereupon said lever and the arms Si--85 are brought back to normal position. as shown in Figs. 5 and (i. by the action of the spring (it; as before described. As will be rcadilv understood. each of the several plow-lifting means alter being set in motion by the arms SQ--Ql----R485 operate in the manner herctolm'e i'lcscribed in connection with the right hand plow elevating means. the forward end of each of the links 7:") being turned to a point below the center of the shaft 4-9 whercbv the plows as they are raised successively are locked in raised position. As best shown in Fig. 4. each of the dogs 80 is pivotallv mounted nponits arm 74 by means of a pivot-pin 80. which is mounted in the arm 71- and extends beyond the dog 80. having a spring 90* interposed between the end of the pin and the dog. said spring serving to hold the dog in such frictional engagement with the arm 74 that the dog does not swing relative to said arm except as it moves under the actionof some positive force.

Coming now to the means for lowering the olows in succession on a line at ight angles to the direction of advance of the. plow S7---89---89-90 indicate arms fixed u on rockshaft, 6-1 in staggered r lation relative to each other. As best shown in nected to its lower end a rack-bar 93.

Fig. 4, 91 indicates a pin carried by each of the links near its forward end. All of the pins 91 are in the same relative position upon their respective links 75, the pin 91 of the link 75 of the right hand plow elevating means being in such position as to be brought in the plow-raising operation Substantially into contact with the arm 87. With the plows all in raised position, with the pin 91 shown in Fig. 6 substantially in contact withthe arm 87 and with the arms 88-89-90 standing at varying distances from the remaining pins 91. the rocl -shaft 64 is rotated in clockwise direction in Figs. 5 and 6. Upon the start of the rotation of said shaft the arm 87 raises the pin 91 that is in contact therewith, rotating the arm 74 in counterclockwise direction. When the pivotal connection of the link 75 upon the arm 74- is raised above the center of the afillfift 49, the weight of the plow, acting through the link 75, serves to cause the plow to drop to the ground. lin view of the stag gerod relation of the arms 8788-8990, the said arms are brought successively into contact with the pins 91 whereby the plows are dropped in successiomthe right hand plow first, and the remaining plows one at a time thereafter.

Coming now to the means for controlling the rotation of the shaft 64 whereby the plows may not only be dropped in succession, but may also be dropped automatically on a line at right angles to the advance of the plow, 92 indicating an arm depending from the rock-shaft 64 having pivotally c0514- indicates a bellcrank lever pivot-ally mounted upon the frame-bar 58 and provided at one end with a stud or roller projecting laterally therefrom for the support of the freeend of the rack-bar 93. 96 indicates a spring connected to the bcllcrank lever 94 the rockshaft 64 in counterclockwise di' rection in Figs. 8 and 9 and in clockwise direction in Figs. 5 and 6, the rotation of said rock-shaft being substantially uniform. With the arms 87-88-89-90 arranged in proper relation upon the shaft 64. said arms are brought into engagement with their pins 91 at regular intervals. With the parts arranged and proportioned properly. the arms 87 -88 89-90 are brought into operative action at such intervals as to drop the plows successively at the desired points. As soon as the rack 93 has been moved rearward a sufficient distance to complete the action of the arms .8788.89--90, the pull upon the bellcrank lever 94 is removed and the spring 96 servesto return the bellcrank lever to its normal position, permitting the rack-bar 93 to drop out of engagement with the pinion 97, whereupon the rock-shaft 64: is returnedto normal position as shown in Figs. 5, '6 and 7 throughthe action of the spring 68 While I have shown no means for operating the levers 86 and 94 other than the cords 98-99 connected to their upper ends, respectively, it will be understood that any suitable means may be employed as desired for exerting a continued pull upon said levers for the desired period of time, and that I do not restrict myself to the construction illustrated except as hereinafter specifically claimed.

While I have used an expedient for timing the raising of the plows relative to each other different from that used for timing .the lowering of the plows relative to each other. it will be understood that I do not restrict myself to that feature of diiierence except as hereinafter specifically claimed, it being apparent that the means for timing the lowering of'theplows relative to each other could be employed equally well for timing the raising of the plows, if desired, and that a device for timing the lowering of the plows similar to that employed for timingthe raising of the plows could also be used.

By the use of my improved construction, sepa rate means are provided for each plow for operatively connecting the main drive shaft 49 with the bell-crank lever39 by which the plow is raised. Thus each conmeeting means is called upon to bear the strain of raising one plow only, audit is not necessary to make any intermittently driven part heavy enough to bear the burden of raising a plurality of plows. This is a very material advantage, when taken in connection with my improved construction by which the operation is automatically controlled for raising and lowering the plows pro 'icrly in succession as desiredwithout the supervision of the operator to that end.

By the provision of the means for supthe plows-may be istanding on account of unevenness of the ground upon which the gage-wheels rest, I lnsure that the arms R788 89-90 will act at the proper moment upon the pins 91 for dropping the plows successively as desi d.

iii

What I claim as my invention, and desire to secure by Letters Patent, 18-- l. lln a gan plow, the combination of a frame, a plurr ity of plows operatively'connected with said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, separate devices for each of said plows for operatively connecting it with said shaft for raising the plow and means actuated independently of the rotation of said shaft but controlled thereby for throwing said raising devices successively into operation, said last-namcd means being automatically timed whereby the plows are raised successively at the die sired intervals. y

2. In a gang plow, the combination of a frame, a plurality of plows operatively con nected with said, frame and adapted to be raised and low ..d relative thereto, a shaft mounted on said frame, means forcontinuously driving said shaft, separate devices for each of said plows for operatively connecting it with said shaft for moving the plow relative to the frame, and controlling means for throwing said plow-actuating devices successively into operation, the operative engagement of said controlling means with any one of said plow-actuating devices serving to prevent the operative engagement with the next-succeedmg plow-actuating device until said one plow-actuating device has been given a certain moven'ient.

3. In a gang plow, the combination of a frame, a plurality of plows operatively connectcd with said frame and adapted. to be raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, separate devices for each of said plows for operatively conpredetermined .nccting it with said shaft for moving the plow relative to the frame, controlling means for throwing said plow-actuating de-.- vices successively into operation, and means rotatable about said shaft cooperating with said controlling means for timing the engagement of the controlling means with said plow-actuating devices.

4. In a gang plow, the combination of a frame, a plurality of plows operatively connected with said frame and adapted to be raised and lowered relatively thereto, a shaft mounted on said frame, means for continuously driving said shaft, separate devices for each of said plows for operatively con necting it with said shaft for moving the plow relative to the frame, controlling means for throwingsaid plow-actuating dcvices successively into operation, and means actuated by the rotation of said shaft cooperating with said controlling means for timing the engagement of the controlling means with said plow-actuating devices.

5. In a an plow, the combination of a frame, a p ura ity of plows operatively connected withsaid frame and adapted to be raised and lowered relative thereto, a' shaft mounted on said frame, means for continuously driving said shaft, separate devices for each of said plows for operatively connecting it with said shaft for moving the plow relative to the frame, controlling means actuated independently of the rotation of said shaft for throwing said plowactuating devices successively into operation, and means actuated by the rotation of said shaft cooperating with said controlling means for timing the engagement of the corn trolling means with said plow-actuating devices.

(3. In a gang plow, the combination of a frame, a plurality of plows operatively connected with said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, separate devices for each of said plows for operatively connecting it with said shaft for moving the plow relative to the frame, and manually operated means for throwing said plow-actuating devices successively into operation, said manually-operated means being automatically timed whereby the plows are raised successively at the desired intervals.

7. In a gang plow, the combination of a frame, a plurality of plows operatively connected with said frame and adapted to be raised and lowered relative thereto, a shaft means actuated by the rotation of said shaft cooperating with said manually-operatcd means for timing the engagement of said mannally-opcrated means with said plow-' actuating devices.

8. In a gang plow, the combination of a frame, a plurality of plows operatively connected with said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, separate devices for each of said plows for opcratively connecting it with said shaft for moving the plow relative to the frame, means comprising a second shaft for throwing said plowactuating devices successively into opera tion, means tending to rotate said second shaft to cause said plow-actuating devices to act in quick succession, and means actuated by the rotation of said first-named shaft for timing the rotath u of said second shaft.

9. Ion ang plow, the combination of a frame, a p urality of plows ooerativelv con nected with said frame and adapted to he raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, separate devices for each of said plows for operatively connecting it with said shaft for moving the plow relative to the frame, means comprising a lever for throwing said plow-actuating devices successively into operation, means tending to swing said lever to cause said plow-actuating devices to act in quick succession, and means actuated by the rotation of said shaft for timing the swinging of said lever.

10. In a gang plow, the combination of a frame, a plurality of plows operatively connected with said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continu ously driving said shaft, separate devices for each of said plows for operatively connecting it with said shaft for raising the plow and. means for throwing said raising devices successively into operation, the arrangement of said last-named means and said raising devices being such that said last-named means cannot throw into operation any one of said raising devices after the first until the next preceding raising device has moved a certain predetermined distance after being thrown into operation.

11. In a gang plow, the combination of a frame, a plurality of plows operatively connected with said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, separate devices for each of said plows for operatively connecting it with said shaft for raising the plow and means for engaging said raising devices for throwing them successively into operation, the arrangement of said lastnamed means and said raising devices being such that the operative engagement with one of said raising devices prevents the simultaneous operative engagement with the nextsucceeding raising device.

12. In a gang plow, the combination of a frame, a plurality of plows operatively connected with said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, separate devices for each of said plows for operatively connecting it with said shaft for raising the plow and means actuated independently of the rotation of said shaft adapted by reason of a continued stress thereon to throw said raising devices successively into operation, said last-named means being automatically timed whereby the plows are raised successively at the desired intervals.

13. In. a gang plow, the combination of a frame, a plurality of plows operatively con nected with said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continu ously driving said shaft, separate devices for each of said plows for operatively connecting it with said shaft for raising the plow, a lever, and means actuated by a stroke of said lever in one direction for throwing said raising devices successively into opera tion, the cooperation of the parts being such that said lever is limited to an intermittent movement whereby the plows are raisedsuccessively at the desired intervals.

14:. In a gang plow, the combination of a frame, a plurality of plows operatively connected with said frame and adapted to. be raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, separate devices for each of said plows for operatively connecting it'with said shaft for raising the plow and means for throwing said raising devices successively nto operation, said raising devices comprising a series of dogs adapted to be engaged successively by said last-named means,said-means being held from operative engagement with each of said dogs after the first one of the series thereof until after engagement with the next-preceding dog has been broken 0E.

15. In a gang plow, the combination of a frame, a plurality of plows operativelv connected with said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, separate devices for each of said plows for operatively connecting it with said shaft for moving the plow relative to the frame,.and controlling means for throwing said plow-actuating devices successively into operation, the operative engagement of the controlling means with anyone of said plow-actuating devices serving to prevent the operative engagement of said controlling means with the next-succeeding plow-actuating device until said one plow-actuating device has been given a certain predetermined movement.

16. In a gang plow, the combination of a frame, a plurality of plows operatively con nected with said frame'and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, separate devices for each of said plows for operatively connecting it with said shaft for moving the plow relative to the frame, and controlling means for throwing said plow-actuating devices successively into operation, said plowmoving devices comprising a series of dogs adapted to be actedupon successively by said controlling means, the controlling means by its operative engagement with any one of said dogs being held out of operative engagement with the next-succeeding dog until said one dog has been given a certain predetermined movement.

17. In a gang plow, the combination of a frame, a plurallty of plows operatively connected with said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, separate devices for eaclft of said plows for operatively connecting it with said shaft for moving the plow relative to the. frame, and controlling means for throwing said plow-actuating de vices successively into operation, said plowaetuating devices comprising a series of ratchet-wheels adapted to rotate with said shaft, and a series of dogs adapted to be thrown by said controlling means successively into engagement with the ratchet wheels for moving the plows, the controlling means by its operative engagement with any one of said dogs being held out of operative engagement with the HQXt'SiKT/Cfllhlg dog until said one dog has been given a certain predetermined movement.

18. In a gang plow, the combination of a frame, a plurality of plows operatively connected with said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, separate devices for each of said plows for operatively connecting it with said shaft for raising the plow, sald raising devices comprising a series of .dogs adapted to be given during the raising operation a partial rotation about said shaft, and means for throwing said dogs succes sively into action, said means being held from operative engagement with each dog in turn after the first one of the series thereof until the preceding dog has been rotated with said shaft a predetermined distance.

19. In a gang plow, the combination of a frame, a plurality of plows oporatively connected with said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, separate devices for each of said plows for o )eratively connecting it with said shaft for raising the plow, said raising devices comprising a series of dogs adapted to be given during, the raising operation a partial rotation about said. shaft, and means for throwing said dogs successively into action, said means beinp held from operative engagement with each dog in turn after the first one of the series until after the preceding; dog has passed out of operative engagement therewith.

20. In a gang plow, the combination of a frame, a plurality of plows operatively connected with said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, a series of ratchet wheels adapted to rotate with said shaft, and automatically-timed means actuated independently of the rotation of said shaft but controlled thereby for successively connecting said plows with said ratchet wheels respectively.

21. In a gang plow, the combination of a frame, a plurality of plows operatively connected with .aidframe and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, a series of ratchet wheels adapted to rotate with said shaft, a connector extending forward from each of said plows adapted by a forward pull thereon to raise said plows, pawls by which said connectors are adapted to be connected with said ratchet wheels respecti ely, and a1itomatically-timed means actuated in dependently of the rotation of said shaft but controlled thereby for successively throwing); said pawls into operative engagement with said ratchet wheels whereby the plows are raised successively at the desired intervals.

22. In a gang plow, the combination of a frame, a plurality of plows operatively connectedwith said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, a series of arms revolubly mounted relative to said shaft, links connected at their rear ends to said plows respectively adapted by a forward pull thereon to raise said plows, COIIIIGL'tioHs between said links and said arms respec-- tively, and, automatically-timed means controlled by the rotation of said shaft but actuated independently thereof for successively connecting said arms to said shaft for a partial rotation thereof for raising said plows at predetermined intervals. I

28. In a gan plow, the combination of a frame, a lural1ty of plows operativel, connected with said frame and adaptedho be raised and lowered relative the eto, haft mounted on said frame, means for c ntinuously driving said shaft, a series i-YlllS revolubly mounted relative to said rift, links curved downward at their :ltcward ends and connected at their rear ends to said plows and adapted by a forward pull thereon to raise said plows, connections between said links and said arms respectively, and automatically-timed means controlled by the rotation of said shaft but actuated independently thereof for connecting said arms to said shaft for a partial rotation thereof for raising said plows, said links being adapted to have their curved .lorward ends carried beyondsaid'shaft and below the center thereof whereby the plows are air tomatically held in raised position.

24,. In a gang plow, the combination of a liltiseries of arms revolubly mounted on said shaft one alongside each of said ratchet wheels, connections between said arms and said plows whereby a forward rotation of v said arms serves to raise said plows, dogs pivotally mounted on said arms, and automatically-timed means controlled by the rotation of said shaft but actuated independently thereof for throwing said dogs into operative engagement with said ratchet wheels whereby said plows are raised at predetermined intervals.

25. In a'gang plow, the combination of a frame, a plurality of plows operatively connected with said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, a series of ratchet wheels adapted to rotate with said shaft, a series of arms revolubly mounted on said shaft one alongside each of said ratchet wheels, connections between said arms and said plows whereby a forward rotation of said arms serves to raise said plows, dogs pivotally mounted on said arms, and means for throwing said dogs successively into operative'enga gement with said ratchet wheels,

' the operative engagement of said means with any one of said dogs serving to prevent simultaneous operative engagement with the next-succeeding dog.

26. In a gang plow, the combination of a frame, a plurality of plows operatively con nected with said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, a series of ratchet wheels adapted to rotate with said shaft, :1

series of arms revolubly mounted on said shaft one alongside each of, said ratchet wheels, connections between said arms and said plows whereby a forward rotation'o'f said arms servesto raise said plows, pawls pivotally mounted on said arms, a rockshaft'provided with arms mounted thereon in sta gered relation to each other, said last name arms being adapted to successively contact said pawls to move them into operative engagement with said ratchet wheels, the operative engagement of one arm with its pawl preventing simultaneous engage ment of the next arm with its pawl.

27. In a gang plow, the-combination of a frame, a plurality of plows operatively connected with said frame and adapted to be raised and lowered relative thereto, a shaft mounted-onsaid frame, means for continuously driving said shaft, a series of ratchet wheels adapted to rotate with said shaft, a

atlases series of arms revolubly mounted on said shaft one alongside of each of said ratchet wheels, links curved downward at their forward ends pivotally connected at their forward ends with said arms'respectively and connected at their rear ends with said plows respectively whereby a forward rotation of said arms serves to raise said plows, dogs pivotally mounted on said arms, automatically-timed means for throwing saiddogs into operative-engagement with said ratchet wheels whereby said plows are raised at pre determined intervals, and means for supporting the forward ends of said links in the same position relative to said shaft when the plows are held in raisediposition.

28. In a gang plow, the combination of a frame, a plurality of plows operatively connected with said frame and adapted to be raisedand lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, a series of ratchet wheels adapted to rotate with said shaft, a series of arms revolubly mounted on said shaft one alongside of each of said ratchet wheels, links curved downward at their forward ends pivotally connected at their for ward ends with saitl arms respectively and connected at their rear ends with said plows respectively whereby a forward rotation of said arms serves to raise said plows, dogs 'pivotally mounted on said arms, automatiraising operation is completed, said means also serving to hold the forward ends of said links in the same positions relative to said shaft.

In a. gang plow, thecombination of a frame, a plurality of plows?! operatively connected with said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, meansfor continuously driving said shaft, a series of ratchet wheels adapted to rotate with said shaft, a series of arms revolubly mounted on said shaft one alongside of each of said ratchet wheels, links curved downward at their for ward ends pivotally connected at their for ward ends with said arms respectively and connected at their rear ends with said plows respectively whereby forward rotatlen of.

said arms serves to raise said plows, -dogs plvotally mounted on said arms, automatp cally-tnned, means controlled by the rota tion of said shaft but actuated independently thereof for throwing said dogs into operative engagement with said ratchet wheels whereby said plows are raised at predetermmed intervals, and means for automatieallythrowing each of said dogs out s rof engagement with its ratchet wheel when the link has assumed a position withits curved end in front and below the center of said shaft.

30. In a gang plow, the combination of a frame, a plurality of plows operatively connected with said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continu ously driving said shaft, a series of ratchet wheels adapted to rotate with said shaft, a series of arms revolubly mounted on said shaft one alongside of each of said ratchet wheels, links curved. downward at their forward ends pivotally connected at their forward ends with said arms respectively and connected at their rear ends with said plows respectively whereby a forward rotation of said arms serves to raise said plows, dogs pivotally mounted on said arms, automatically-timed means for throwing said dogs into operative engagement with said ratchet wheels whereby said plows are raised at predetermined intervals, and means for antomatically throwing each of said dogs out of'engagement with its ratchet wheel when the link has assumed a position with its curved end in front and below the center of said shaft, said means serving to hold. the forward ends of said links in the same positions relative to said shaft.

31. In a gang plow, the combination of a frame, a plurality of plows opcratively connected with said frame and adapted to be raised-and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, a series of ratchet wheels adapted to rotate with said shaft, a series of arms revolubly mounted on said shaft one alongside of each of said ratchet wheels, links curved downward at their for ward ends pivotally connected at their forward ends with said arms respectively and connected at their rear ends with said plows respectively whereby a forward rotation of said arms serves to raise said plows, dogs pivotally mounted on said arms, automatically-timed means for throwing said dogs into operative engagement with said ratchet wheels whereby said plows are raised at predetermined intervals, means for supporting the forward ends of said links in the same position relative to said shaft when the plows are held in raised position, and other F means adapted to act on said links to raise them out of locking position relative to said shaft.

32. In a gang plow, the combination of a frame, a plurality of plows operatively connected with said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for continuously driving said shaft, a series of ratchet wheels adapted to rotate with said shaft, a series of arms revoluhly mounted on said shaft one alongside of each of said ratchet wheels, links curved downward at their forward ends pivotall connected at their forward ends with sald arms respectively and connected at their rear ends with said plows respectively whereby a forward rotation of said arms serves to raise said plows, dogs pivotally mounted on said arms, automatically-timed means for throwing said dogs into operative engagement with said ratchet wheels whereby said plows are raised at redctermined intervals, means for S11 portmg the forward ends of said links 1n the same position relative to said shaft when the plows are held in raised position, and other means automatically timed to act successively on said links to raise them at predetermined intervals out of locking position relative to said shaft.

33. In a gang plow, the combination of a frame, a plurality of plows operatively con neeted with said frame and adapted to be raised and lowered relative thereto, a shaft mounted on said frame, means for c0ntinuously driving said shaft, a series of ratchet wheels adapted to rotate with said shaft, a series of arms revolubly mounted on said shaft one alongside of each of said ratchet wheels, links curved downward at their forward ends pivotally connected at their forward ends with said arms respectively and connected at their rear ends with said plows respectively whereby a forward rotation of said arms serves to raise said plows, dogs pivotally mounted on said arms, automatically-timed means for throwing said dogs into operative engagement with said ratchet wheels whereby said plows are raised at predetermined intervals, means for supporting the forward ends of said links in the same positions relative to said shaft when the plows are held in raised position, and other means positively actuated by said shaft to act successively on said links to raise them at predetermined intervals out of locking position relative to sa d shaft.

C. B. REED, W. M. Gave. 

